21439938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{274871}}^1$

素因数の和:274889

約数の個数: 16

約数和(自身を含む): 46178496

約数和(自身を除く): 24738558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 274871, 549742, 824613, 1649226, 3573323, 7146646, 10719969, 21439938]

約数ペア:

[(1, 21439938), (2, 10719969), (3, 7146646), (6, 3573323), (13, 1649226), (26, 824613), (39, 549742), (78, 274871)]